Sash construction



Feb. 8, 1938. c. M. VERHAGEN 2,107,342

SASH CONSTRUCTION Filed Nov. 22, 1935 2 Sheet s-Sheet 1 Feb. 8, 1938. c.M. VERHAGEN SASH CONSTRUCTION Filed NOV. 22, 1935 2 Sheets-Sheet 2Patented Feb. 8, 193$ .UNlTE'D STATES PATENT orncs mans-summ n 111., acor- ,appumions vmur :2, ms, saw No. 51,040

s calms (61. 180-76) In the production of metal sash oi the verticallyslidable type used in railway cars, busses and other vehicles, it hasbeen the usual practice to Y i make all the rail members of sheet metalwith the ends of the members mitered and connected together at thecorners by means of- L-shaped reinforcing inserts secured within thehollow mitered ends of the members.

This arrangement is satisfactory where sheet brass, for instance, isemployed as the metal, but.

where sheet aluminum issubstituted, diiliculty has been experienced inobtaining suflicient strength, the bottom rail of the sash being inclined to give somewhat under. .the strains to which the same issubjected in being grasped to raise or lower-the sash in snugly fittingguides.

In an attempt to overcome this difllculty' and; at

. the same time retain the advantages iuh'er'entfin aluminum, some sashhave been made'wl th the rail members of extruded aluminum. but thistype of structure, while vin am le strenh has g g p of the side walls iiof the rail II, in which been too expensive to be entirely m'acticable.-

The object of the present invention is to provide. an improved aluminumsash structure which is inexpensive to manuiacture and yet all of theadvantages of an extruded aluminum structure.

Other more specific objects and advantages of the invention will beapparent to those skilled in 80 the art upon a full understanding of thecon- '-struction and manner of assembly of the new Two different formsof the invention are presented herein for the purpose ofexemplification, )6 but it will of course be appreciated that theinvention is capable of being embodied in other structurally modifiedforms coming equally within the scope of the appended claims.

' In the accompanying drawings:

Fig. 1 is an inside face view of one-of the lower corners of a sashconstructed in accordance with the invention;

Figs. 2 and 3 are different perspective views,

a showing the way in which the ends ofthe side and bottom rails arebrought together, fitted and welded; Y

Fig. 4 is a vertical section through the median plane of the completedcorner;

50 Fig. 5 is a horizontal section'throu gh the side rail, taken'on theline H of. Fig. 4;

Fig. 6 is a vertical section through the bottomrail, taken on the line8-4 of Fig. '4; Fig. 'l is a perspective view showing in sep- 55 aratedrelation the parts involved in' the ion-ma.-

tion of a somewhat different corner which also embodies the invention;and

Fig. 8 is another perspective view of the same corner in completedcondition, with the bottom rail sealing strip and a portion of the siderail 5 bearing strip removed ior clearness.

In the sash which is illustrated in Figs. 1 to 6 inclusive the side railII is made oi thin sheet aluminum while the bottom rail ii is made ofrelatively thick extruded aluminum. The bot- 10 tom rail Ii extends thefull width of thesash, and its ends. cut oil at right angles flush withthe. side edges of the sash.

The rails II and II are of the same thickness and, contain glazinggrooves l2 and II of the same size,'but the side walls H along the sidesof the glazing groove in the rail III are hollow while the correspondingside walls I! along the sides of the glazing groove in the rail II aresolid. The lower end of the side rail III is cut oii at 20 right anglesand is seated on the upper edges position the rails are welded firmlytogether, iilleted at IS with additional weld deposits and polished oi!flush to give the smooth one-piece 25 appearance shown in Fig. 1.

- The extruded bottom rail ii is formed with a groove il along the loweredge thereof for the reception of a rubber sealing strip is, and alongitudinally extending cross web i9 is provided in the rail H at theback of the'groove I! in spaced relation to the back oi the glazinggroove II for the purpose oi reinforcing the rail and completing asuitable tubular support for a slidably' mounted locking bolt 20. Bycutting of! the end of the ,rail ll squarely at right angles flush withthe back of the rail II the ends of the grooves I I and I! in the railII are left open and the space between the back of the glazing groove isand the cross web I! is 40 also left open.- This facilitates drainage ofthe groove it, affords easy insertion of the bottom rail sealing stripin the groove i1 and permits introduction of the locking bolt 20 intothe space present in the rail above the cross web it.

By forming the corner in this fashion, withthe lower end oi the rail itcut of! squarely and butted solidly on the parallel upper surfaces oithe side walls II, no corner reinforcement is needed, no special shapingor mitering of the ends is required, and a strong Joint of pleasingappearance iree of rivets and visible joints is produced. In themodification which is shown in Figs. 7 and 8 the side rail ii isprovided with a special groove 22 for the reception of a rubber strip23.

This strip works in the guide at the side 0! the window and constitutesa resiliently 'yieldable extension for the side rail, in accordance withthe disclosure in Hamm Patent No. 1,981,355. The side edges of thegroove 22 have inturned flanges 24 which hold the strip 18 in properposition.

As the groove 22 with its inturned flanges 24 should extend all of theway down to the bottom of the sash in order to obtain full benefit fromthe strip 23, a sheet metal insert 25 which is shaped to form acontinuation of thegifoove and the flanges is fitted into a milled-outrecess It in the end oi the extruded aluminum bottom rail 21 and iswelded in place at one or more points. The insert 25 is characterized bya groove 28 and inturned flanges 29. It is open-at its ends, and boththe back or the insert and the inturned flanges are cut away to providea passagewa 30 for the end of a locking bolt. 4

As in the first described embodiment of the invention the bottom rail 21is cut to the tull width of the sash and the lower end of the side railM is out on at right angles, placed on the upper edges of the sidewallsii of the glazing groove in the bottom rail and welded in position.

While the herein described joint construction is particularly applicableto aluminum sash structures wherein the side rails are of sheet aluminumand the bottom rail is of extruded aluminum, it will of course beunderstood that the joint construction and the other associated featurescan be employed to advantage in sash structures where the side rails,like the bottom rail, are made of extruded aluminum, and also where theside rails and bottom rail are made of other metals.

I claim:

1. In sash construction, side rails consisting of thin sheet aluminummembers and a bottom rail consisting of an extruded aluminum memberwhich contains a longitudinally extending cross web, said bottom railmember being cut ver tically at its ends to the full width of the sash,and said side rail members being welded at their lower ends to the upperedges of the bottom rail member above the cut ends of the latter,leaving the cut ends open for the reception and support of a lockingbolt on the cross web.

2. In sash construction, an extruded aluminum bottom rail of hollowformation whichextends the full width of the sash and is cut verti atits ends flush with the side edges of the and thin sheet aluminum siderails of hollow formation which are of the same overall thickness as thebottom rail and are welded to the bottom rail above the cut ends of thelatter, leaving openings in the cut ends of the bottom rail for thereception of the locking bolts.

3. In sash construction, an aluminum bottom rail cut to the full widthof the sash, aluminum side rails cut at their lower ends and weldedalong the cuts to the upper edge or the bottom rail flush with the endsof the latter, the outer edges of the side rails being provided withgrooves with intumed edges for the reception of rubber hear- I ingstrips, and aluminum inserts of substantially the same cross sectionalshape as the grooves in the outer edges of the side rails, which insertsare secured in milled-out recesses in the cut ends of the bottom rail.

4. In a vertically slidable sash, a, metal bottom rail provided alongits upper edge with spaced glazing groove walls of the same height, andmetal side rails provided along their edges with similarly spacedglazing groove walls of the same height, the ends of the bottom railbeing cut vertically to the full width of the sash, and the lower endsof the side rails and the glazing groove walls thereof being cut offin ahorizontal plane and welded along the cut surfaces to the upper edges ofthe glazing groove walls in the bottom ra 5. In a verticallyslidable-sash, a metal bottom rail provided along its upper edge withspaced glazing groove walls of the same height, and metal side railsprovided along their edges with similarly spaced glazing groove walls ofthe same height, the ends of the bottom rail being -cut vertically tothe full width of the sash, and the lower ends of the side rails and theglazing groove walls thereof being cut off in a horizontal plane andwelded along the cut surfaces to the upper edges of the glazing groovewalls in the bottom rail, the-glazing groove walls of the bottom railbeing solid, and the glazing groove walls of the side rails beinghollow, with the exposed surfaces of the hollow walls flush with theexposed surfaces of-thesolid walls both on the inside of the glazinggrooves and on the outside of the rails.

CHRISTIAN M. VERHAGEN.

